How to Deal With Pests in Your Home

No matter how clean you keep your home, pests can find their way in. A tiny crack in the foundation is an open door for ants. A gap around a pipe is a highway for mice. A warm, humid bathroom is a paradise for roaches. An estimated 84% of American homeowners have dealt with a pest problem in the past year, so if you are dealing with unwanted visitors, you are far from alone.

The good news is that most pest problems are manageable -- many can be handled with affordable DIY methods, and even professional treatment is more affordable than most people expect. This guide covers the most common household pests, proven DIY solutions, when to call a professional, how much pest control costs, and the prevention steps that keep pests from coming back.

Common Household Pests and What to Do About Them

Different pests require different approaches. Here is a breakdown of the most common household invaders and the most effective way to deal with each one:

Ants

Ants are the most common household pest in the United States. They enter through the tiniest cracks, leave pheromone trails for other ants to follow, and can establish colonies with thousands of members inside your walls. The species you are most likely to encounter are sugar ants (odorous house ants), carpenter ants, and pavement ants.

DIY solution: Start by identifying and eliminating the food source -- clean up crumbs, wipe down counters, and store food in sealed containers. Follow the ant trail back to its entry point and seal it with caulk. Use ant bait stations (not spray) near the trail. Bait works because the ants carry the poison back to the colony, eventually killing the queen. Spraying kills individual ants but does not eliminate the colony. For a natural option, sprinkle diatomaceous earth along entry points -- it is non-toxic to humans and pets but lethal to ants.

Call a pro if: You have carpenter ants (they are large, black, and can cause structural damage by tunneling through wood) or if the colony persists after two weeks of consistent baiting.

Mice and Rats

If you see one mouse, there are almost certainly more. Mice can squeeze through a hole the size of a dime, reproduce rapidly (one female can produce 5-10 litters per year), and contaminate food with their droppings. Rats are larger, more destructive, and can chew through wood, drywall, and even electrical wiring -- creating a fire hazard.

DIY solution: Set snap traps (the classic wooden or plastic type) along walls and in areas where you have seen droppings. Bait with peanut butter -- it is more effective than cheese. Place traps perpendicular to walls with the trigger end facing the wall. Set multiple traps, as mice rarely travel alone. Seal all entry points with steel wool stuffed into gaps, then covered with caulk. Mice cannot chew through steel wool. Store all food in hard plastic or glass containers and clean up crumbs and spills immediately.

Call a pro if: You suspect rats (they are more aggressive and harder to trap), if the infestation is large (droppings in multiple rooms), or if you hear scratching in walls or ceilings (indicating nesting inside the structure). Professional rodent exclusion -- sealing every entry point and trapping -- is the most effective long-term solution for persistent problems.

Cockroaches

Roaches are resilient, fast-reproducing, and a significant health hazard. Their droppings and shed skin trigger asthma and allergies, and they spread bacteria like salmonella and E. coli. The most common species in homes are German cockroaches (small, light brown, found in kitchens and bathrooms) and American cockroaches (large, reddish-brown, often found in basements and drains).

DIY solution: Gel baits (like Advion or Combat) are the most effective DIY treatment. Apply small dots of gel bait in cracks, crevices, under sinks, behind appliances, and along baseboards where roaches travel. The roaches eat the bait, return to their nest, and the poison spreads through the colony. Combine with boric acid powder dusted lightly in cracks and behind appliances -- it is one of the oldest and most effective roach killers. Keep your kitchen immaculate: no dishes in the sink overnight, no crumbs on counters, no pet food left out, and take out trash daily.

Call a pro if: You see roaches during the day (a sign of a large infestation, since roaches are nocturnal), if you find egg cases (oothecae), or if DIY methods have not resolved the problem within 2-3 weeks. German cockroaches in particular reproduce so rapidly that professional treatment is often necessary for large infestations.

Spiders

Most household spiders are harmless and actually beneficial -- they eat other pests like flies, mosquitoes, and ants. However, some species like brown recluses and black widows are venomous and require immediate attention. Even non-venomous spiders can be unwelcome houseguests.

DIY solution: Remove webs with a vacuum or broom. Reduce clutter in basements, garages, and closets where spiders hide. Seal cracks and gaps around windows, doors, and the foundation. Use sticky traps in corners and along walls to catch spiders and monitor the population. Reduce outdoor lighting near doors and windows -- lights attract the insects that spiders feed on.

Call a pro if: You identify brown recluse or black widow spiders in your home, or if you have a persistent spider problem that suggests an underlying insect infestation (spiders go where the food is).

Wasps and Hornets

Wasps and hornets build nests in eaves, attic vents, bushes, and underground. A single sting is painful; multiple stings can be dangerous, especially for people with allergies.

DIY solution: For small, accessible nests (fewer than 20 wasps), use a wasp spray that shoots 15-20 feet. Spray at dusk or dawn when wasps are less active and all inside the nest. Wait 24 hours and confirm no activity before removing the nest.

Call a pro if: The nest is large, located in a hard-to-reach area (inside walls, high on a roofline, underground), or if anyone in your household has a wasp sting allergy. Professional removal is also recommended for hornets, which are more aggressive than wasps.

Termites

Termites cause over $5 billion in property damage annually in the United States -- more than fires, floods, and storms combined. They eat wood from the inside out, so by the time you notice the damage, significant structural destruction may have already occurred.

DIY solution: There is no effective DIY solution for an active termite infestation. However, you can watch for warning signs: mud tubes on foundation walls, hollow-sounding wood when you tap on it, discarded wings near windows and doors (from termite swarmers), and frass (tiny wood-colored pellets from drywood termites).

Call a pro immediately if: You suspect termites. Professional treatment is essential -- it typically involves liquid termiticide treatment around the foundation, bait stations, or fumigation for drywood termites. Early detection saves thousands in repair costs.

Bed Bugs

Bed bugs are small, flat, reddish-brown insects that feed on human blood while you sleep. They hide in mattress seams, bed frames, headboards, and furniture cracks during the day. Signs include itchy red welts in lines or clusters on your skin, small blood spots on sheets, and tiny dark spots (droppings) on mattress seams.

DIY solution: Bed bugs are extremely difficult to eliminate without professional help. You can wash and dry all bedding on high heat (130+ degrees kills bed bugs), encase your mattress and box spring in bed bug-proof covers, and vacuum thoroughly. However, these measures alone rarely eliminate an infestation.

Call a pro if: You confirm bed bugs. Professional heat treatment or chemical treatment is almost always necessary. Bed bug infestations get worse over time, never better, so act quickly.

DIY Pest Control Solutions That Work

Before calling a professional, try these proven DIY approaches for common pests:

When to Call a Professional

DIY methods work well for small, early-stage pest problems. But some situations require professional expertise and equipment. Call a pest control professional if:

• The infestation is large: If pests are in multiple rooms, if you see them during the day (roaches and mice are normally nocturnal), or if the problem is getting worse despite DIY efforts
• You have termites: There is no effective DIY termite treatment. Professional treatment is essential to prevent structural damage.
• You have bed bugs: Professional heat treatment or chemical treatment is almost always necessary
• The problem keeps coming back: Recurring pest problems usually indicate an underlying issue (hidden entry points, moisture problems, or a nest inside the structure) that requires professional diagnosis
• There is structural damage: If pests have damaged wood, wiring, insulation, or drywall, a professional can assess the extent of damage and prevent further destruction
• Venomous pests: Brown recluse spiders, black widows, and aggressive wasp/hornet nests should be handled by professionals for safety reasons
• You have health concerns: If household members have asthma or allergies that are worsened by pest allergens (roach droppings, mouse dander), professional treatment provides faster and more thorough relief

How Much Does Pest Control Cost?

Professional pest control is more affordable than most people expect. Here is what you can expect to pay:

Most pest control companies offer a free inspection before quoting a price. Take advantage of this -- it gives you a professional assessment of the problem, the species involved, and the recommended treatment plan before you commit to spending anything. Get at least 2-3 quotes to compare pricing and approaches.

Prevention: How to Keep Pests Out for Good

The best pest control strategy is preventing them from entering your home in the first place. These prevention steps are more effective (and cheaper) than any treatment:

Seal Cracks and Entry Points

Walk around the exterior of your home and look for gaps, cracks, and openings. Pay special attention to where pipes, wires, and cables enter the house. Check around windows, doors, dryer vents, and the foundation. Seal small cracks with exterior-grade caulk. Stuff larger gaps with steel wool (mice cannot chew through it) and cover with expanding foam or caulk. Install door sweeps on all exterior doors and repair or replace damaged window screens.

Keep Your Kitchen Clean

The kitchen is ground zero for pest attraction. Wipe down counters every night. Sweep or vacuum floors regularly, especially under the stove and refrigerator where crumbs accumulate. Store food in sealed containers -- not in open bags or boxes. Take out the trash daily and use a trash can with a tight-fitting lid. Do not leave dirty dishes in the sink overnight. Clean up pet food bowls at night.

Store Food Properly

Transfer pantry staples like flour, sugar, cereal, rice, and pasta into hard plastic, glass, or metal containers with tight lids. Pests can chew through cardboard boxes and thin plastic bags. Keep fruit in the refrigerator rather than on the counter (fruit flies and ants are attracted to ripening fruit). Store pet food in sealed containers, not in the original bag.

Fix Moisture Problems

Many pests -- roaches, silverfish, centipedes, and termites -- are attracted to moisture. Fix leaky faucets and pipes immediately. Use a dehumidifier in damp basements and crawl spaces. Ensure proper drainage around your foundation -- gutters should direct water away from the house, and the ground should slope away from the foundation. Ventilate bathrooms properly to prevent humidity buildup.

Maintain Your Landscaping

Trim bushes and tree branches so they do not touch or overhang your house. Vegetation touching your home creates a bridge for insects and rodents to enter. Keep mulch at least 12 inches away from your foundation -- mulch retains moisture and provides habitat for ants, termites, and other pests. Store firewood at least 20 feet away from your home and elevated off the ground.

How to Find Affordable Pest Control Help

If your pest problem requires professional help, you do not have to overpay. Here are smart strategies for finding affordable pest control:

Post on GigNGo for Local Pest Control Quotes

Post your pest control needs on GigNGo and let local pest control professionals apply. Describe the pest, the severity, and your home's size. You will get applications from multiple providers, each with their own pricing and approach. This competitive process helps you find fair pricing while ensuring you choose someone with the right experience for your specific problem.

Get Multiple Quotes

Never commit to the first pest control company that answers the phone. Get at least 3 quotes and compare their approaches, not just their prices. Ask what treatment methods they use, how many visits are included, and whether they offer a satisfaction guarantee. A slightly higher-priced company with a guarantee may be a better value than a cheaper one with no follow-up.

Ask About Bundled Services

Many pest control companies offer annual plans that include quarterly preventive treatments. These plans typically cost $400-$600 per year and cover general pests (ants, roaches, spiders, mice) with regular treatments and guaranteed response if pests appear between visits. For homes in pest-prone areas, annual plans can be more cost-effective than paying for individual treatments as problems arise.

Frequently Asked Questions About Pests in Your Home

Are pests more common in older homes?

Yes, generally. Older homes tend to have more cracks, gaps, and entry points due to settling, aging materials, and older construction methods. Foundation cracks, gaps around original windows, and deteriorating weather stripping all provide easy access for pests. However, even new construction can have pest problems if landscaping is too close to the house, if there are construction gaps, or if the home is in a pest-prone area. Regular inspection and sealing of entry points is important for homes of any age.

Is pest control safe for pets and children?

Modern professional pest control products are designed to be safe when applied correctly. Most treatments target specific pests and are applied in areas where children and pets do not have direct contact (inside walls, in cracks, behind appliances). However, always inform your pest control provider about pets and children so they can choose appropriate products and advise you on any necessary precautions. For DIY treatments, food-grade diatomaceous earth and enclosed bait stations are among the safest options for households with pets and children.

How do I know if I have a pest problem or just saw one bug?

Seeing one ant, spider, or random insect does not necessarily mean you have an infestation. Look for these signs of a larger problem: droppings (mouse pellets, roach frass), damage (chew marks, holes in food packaging), nesting materials (shredded paper or fabric from mice), trails (ant pheromone trails), multiple sightings (seeing the same type of pest repeatedly), and sounds (scratching or rustling in walls or ceilings, especially at night). If you see any of these signs, you likely have an active infestation that needs attention.

Do ultrasonic pest repellers actually work?

The evidence is mixed at best. Ultrasonic pest repellers emit high-frequency sounds that claim to drive away mice, roaches, and other pests. However, multiple scientific studies have found little to no evidence that they are effective. The Federal Trade Commission has even issued warnings against misleading claims by some manufacturers. Your money is better spent on proven methods like sealing entry points, using bait stations, and maintaining a clean home. If you choose to try one, use it as a supplement to other methods -- not as your primary pest control strategy.

When is pest season?

Pest activity varies by season: Spring brings ants, termite swarmers, and wasps as temperatures warm. Summer is peak season for most pests -- ants, roaches, mosquitoes, flies, wasps, and spiders are all most active. Fall is when mice and rats start looking for warm shelter inside your home as temperatures drop. Winter is generally the quietest season, but rodents, roaches, and spiders that made it inside in fall will remain active indoors. The best time for preventive pest treatment is early spring, before pest populations explode.

The Bottom Line on Dealing With Pests

Pests are a fact of homeownership, but they do not have to take over your home. Most common pests -- ants, mice, roaches, and spiders -- can be managed with affordable DIY methods like bait stations, traps, sealing entry points, and keeping a clean kitchen. For more serious infestations, professional pest control typically costs $150-$400 for a one-time treatment, which is a small price compared to the health risks and property damage that unchecked pests can cause.

The most important step you can take is prevention: seal every crack and gap in your home's exterior, store food properly, fix moisture problems, and keep landscaping trimmed away from the house. These steps cost very little but dramatically reduce your risk of pest problems.

If you need professional help, post your pest control task on GigNGo to get competitive quotes from local pest control professionals. You describe the problem, set your budget, and choose who to hire -- keeping costs down while getting the expert help you need to reclaim your home from unwanted guests.